Time-controlled damper-actuating mechanism.



l E. P. GARDNERQU' TvIMB GONTROLLED DAMPER AGTUATING MEGHANISM.

rPLIoATIoR FILED' rms. 11, 1909.

- Patented 1390.20, 1910,

'entran srafrns rafrnnr onirica.

EDWARD FRANKLIN GARDNER, OF SCRANTON, PENNSYLVANIA.

TIME-CGNTROLLED DAMPER-ACTUATING MECHANISM.

To all whom 'it may concern:

Be it known that l, EDWARD FRANKLiN GARDNER, a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented a new and useful Time-Controlled DampenActuating Mechanism, of which the following is a specification.

My invention relates to mechanism for automatically operating the dampers of stoves or furnaces, and particularly to a time-controlled mechanism which, upon the actuation of a clock alarm, will fall, ope-ning one damper and closing another.

My invention consists in a construction for this purpose of extreme simplicity, which is adapted to support any ordinary alarm clock adjacent to the operative portion of my apparatus, and which is adjustable so that it may be adapted to various makes of furnaces or stoves and to varying` distances between the support for the mechanism and the stove or furnace.

The invention also consists -in the details of construction and arrangement of parts as described in the following specification and specifically set forth in the appended claims.

ln the drawings, Figure 1 is a perspective view of a stove or furnace, with my attachment applied thereto; Fig. 2 is a longitudinal section of the clock-supporting frame, the clock, however, being detached; Fig. 3 is a face view of the uppermost supporting plate; Fig'. 4 is a face view of the clocksupporting member.

In the drawings, 2 denotes a furnace or stove of any ordinary construction having the ash door or draft door, 8, located as usual below the lire-box or grate of the furnace; and /l denotes a door or damper opening for the space above the fire-box or grate.

It is to be understood that l do not wish to limit myself to the exact construction set forth, or furnace shown, or to the peculiar construction or location of these draft or damper doors. The damper il might be located within the smoke flue of the furnace if desired, without in any way departing from my invention, which has not to do with the peculiar construction of the furnace, but with the attachment whereby the opposed dampers or draft doors are opened and closed.

5 designates a bracket or arm attached to Specification of Letters Patent.

Application filed February 11, 1909.

Patented Dec. 26, 1910.

serial No. 477,333.

any convenient portion of the furnace structure and having pivoted thereon the lever 6, which, at one end, is connected by a chain or other fiexible connection, 7, to the draft door, 3. The other end of the lever is connected to the draft door 4 by a flexible connection 8. 1in adjustable weight 9 is mounted on the end of the lever between the connection 8 and the pivotal support of the lever 6, so that the free and unimpeded action of the weight will act to depress one end of the lever 6, lifting the other end, drawing upon the flexible connection 7 and raising the door 3. Thus, under normal circumstances, the door 3, will be held open by the weight-lever 6, while the door t will be ordinarily closed of its own weight.

10 denotes a supporting plate having a projecting flange 11, at its upper end formed with screw holes or other means whereby the plate 10 may be attached to the ceiling orto any other supporting framework adjacent to the furnace. The plate at its upper end is provided with a slot 12, longitudinally extending, and on both sides of the plate on its inner face there is provided tlie guide, 18, the lower end of the plate being also slotted as at 14, the slot eX- tending upward from the extreme lower edge of the plate. The lower edge of the plate is concavely curved as at 15.

16 denotes a shiftable clock-carrying member, preferably formed of an integral piece of metal, the upperl end of the member being in the form of a longitudinally extended plate adapted to lit between the ribs, 1. and having at its upper end an opening 17, through which a bolt 1S may be passed. This bolt 1S passes also through the slot l2 and acts to clamp the member 16 to the plate 10, as shown in Fig. 2. Projecting from the inside face of the member 16 is the stud 19, which passes through the slot l-t in certain positions of adjustment of the plate 16, as shown in Fig. 2, wherein the plate 16 is raised to a higher position than that shown in Fig. 1. This stud is bored for the passage of a bolt Q0, the outer end of this bolt being formed with a head 21 for the reception of a rod 22 which at its lower end is bent laterally as at 23 for engagement with the end of the lever 6. The bolt 2() has a pivotal movement in the stud 19 so that the rod 22 is supported in a freely swinging relation to the member 16. The rod is adjustably held within the opening ot the hea d 21 by means ol the set screw so that the rod may be adjusted 'up or down to any degree required. The, middle por tion ot the member 1G formed with the annular enlargement Q5 ot su'tticient intern nal diameter lto receive the rear end ot' an ala 'm clock. QG, of an)r ordinary construction. the body oi the alarm clock being' supported on outstanding lugs, 21 formed on the inner tace ot the ringv is shoivn in Fig'. fl. these studs project outwardly and form brackets .vhose inner faces are curved to contorni to the curve ot the eircumt'erence of an alarm clock and support the same in position.

jin extension 2S depends helovv the ring;` portion ot the member lo, and the clock supportingl member is so arranged relatively to the lever t3 that this depending' portion acts z s a `guide tor the end ot the lever (i. The alarm clock, is, oit coin'se. to be provided with the usual alarm ivindiircT key, 29, whose Wings when the clock is in position ivithin the riire` Q5. are adjacent to the rod these wines .beiner under ordinary circumstances pa lallel vith the rod The operation ot my invention is obvious trom this description.

The alarm is set in the ordinary manner to be actuated at. any predete'minmfl time. Upon the actuation ot the alarm in the manner Well known. the key Qt) `will be rotated. ll pon this rotation one Wing oit the key vvill engage ivith the pivote-d rod 2Q and will swing the same outward so that its loiver bent end 2? ivill es :ape the end of the lever (3, whereupon the Weight 9 will depress th;`

end ot' the lever. closing' the damper or door i and opening the draft door 3.

in order to set the device it is only necessary to lit't the lever to the position shoivn in Fig'. 1 and to turn the rod until its laterilly bent end 23 engages beneath the lever, the rod being,l swung;- so Ytar invvard that it is nearly in contact with the keyr 29 ot the clock, this key, oi' course. having: been Wound previously to the shitting' ot' the latehinev rod lt will be seen that the rod toi-ms a tinie-actua'ed latch which normally supports thc lever t3 in one position, but Which, ivhen swungl out oi the way alloivs the weight to move the lever (i to its other position.

The brackets 2T are recessed as at 3() for the reception of the spreading 'Feet ot the place against rotation when the key is wound.

My device is extremely simple7 compact and cheap oit construction. There is ne danger oi its being' accidentally operated` and it quickly and easily adjusted.

llhile i have shown What i believe to be a prete lable construction, l do not- Wish to be limited to the exact` details as it is bvious that many changes might be made without departing from the essence ot the invention. Having` thus described my invention, what claim as nen' and desire to secure by lietters-Patent7 is:

l. The combination with a 'furnace includ ing.; a dratt door. and means t'or opening and closing' the same` oii a controlling mechanism for the said means cianprisiupV a support, a clock mounted on the support and including` a winding key, a member relcas` ably engaeiney the said means aid arranged to be released by the said ivimling key a bea 'ing piece pivotally mounted on the sup` port and having` an aperture through which the said member extends tor longitudinal adjustment, and a clamping' device on the bearing' piece ltor engaging the member 'for holdingl the same against longitudinal movement While permitting the member to swing; on the bearing' piece as a center.

fr time-controlled draftr regulator comprisingl a fixed bracket member, a clock supjjiorting member overlajjiping the first memberv` there being a slot in one ot the menibers, a bolt on the other member passino' through the slot igor clamping` the members together, guiding;v means on one olf the members engaging' the other to provide l'or relative longitudinal movement and tor pre venting' the clock-siipporting member trom movingl laterally on the bolt as a pivot, a clock mounted on the second member and provided with a winding' key` a swinging dampeiuengaging element extending;v across the rear ot the clock to be engaged by the said windingy key, and means :for pivoting the damper-engaging element to swing' in a plane parallel with the rear oli the clock to be released trom the damper by the turning ot' the key.

fr time controlled draft regulator com prisinp4 a tixed bracket member in the Ytorni olI a vertical trame havingr pa 'allel ribs, a cloelesupporting member having`I its upper pmtion disposed fiat against the bracket member and slidably engaged betiveen the said ribs. one ot the members having a slot,7 a tastening` on the other member passing through the slot tor adjustably connecting the members together, said supportimcl member having a ring. a clock disposed in the ring' and provided with a Winding key, a pivotcd device secured to the second niember at a point between its upper end and the clock, so that the clock 1s held iirmly in i ng and ha ving an openingextending' transversely to the pivot ot the device. a damperholding' element slidable in the opening;` in the device and extemlinel across the ring' in proximity to the Windingl key olf the clock to be actuated by the key, and means on the device tor clamping the element in ditlierent positions of adjustment therein.

In a mechanism of the class described,

the combination with a `furnace and opposed draft doors, of a lever pirotally mounted on the furnace and weighted at one end, eonnections between the opposite ends of the lever and the opposed draft doors whereby when one is eloeed, the other shall he opened, a longitudinally Slotted supporting plate having opposed parallel ribs, a supporting member whose upper end is received he` tween Said ribs and haring a bolt passing into the slot of the supporting plate, an annular portion "formed in said member adapted to receive the rear end of a clock, brackets on the member for supporting said clock, a pirotally mounted head projecting from the face of the supporting member. a latel ing rod adjustably secured in said head and having a bent end portion adapted to engage beneath and support one end of the weighted lerer, and a clock carried in the annular portion ot' the supporting member and having a winding key operable at any predetermined time, said winding key adapted in its rotation to engage with the latehing rod to force it out of engagement with the lever. ln teetiinony, that I claim the foregoing ae my own, I have hereto ailixed my Signature in the presence of two Witnesses.

EDWARD FRANKLN GARDNER. Witnesses Jol-1N T. Howie, ROB. l). KOEHLER. 

